Butler County Airport
Aircraft Accident/Incident Report

Butler, Pennsylvania 16001
Monday, August 12, 1991 14:30 EDT

NTSB Narrative Summary Released at Completion of Accident

DURING THE TAKE OFF ROLL FROM A TOUCH AND GO LANDING THE AIR PLANE STARTED TO DRIFTED LEFT. THE CFI INSTRUCTED THE STUDENT TO APPLY RIGHT RUDDER, BUT THE AIRPLANE CONTINUED TO DRIFT LEFT. THE RUNWAY IN USE AT THE TIME WAS 08 AND ACCORDING TO THE CFI THE WINDS WERE 360 AT 10 KNOTS. THE CFI THEN APPLIED RIGHT RUDDER, HOWEVER THE AIRPLANE PIVOTED ONTO THE GRASS. THE AIRPLANE NOSED OVER IN THE GRASS AND CAME TO REST UPSIDE DOWN. THE FAA EXAMINED THE AIRPLANE AND FOUND NO DISCREPANCIES.

NTSB Probable Cause Narrative

THE PILOT FAILED TO MAINTAIN CONTROL OF THE AIRPLANE, RESULTING IN THE AIRPLANE DEPARTING THE RUNWAY AND IMPACTED WITH THE TERRAIN.

Event Information

Type of Event Accident
Event Date 8/12/1991
Event Day of the Week Monday
Time of Event 1430
Event Time Zone Eastern Daylight Time
Event City BUTLER
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 16001
Event Date Year 1991
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BUTLER COUNTY
Event Location Nearest Airport ID BTP
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 1248
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 929
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45008
Date of most recent change to record Dec 12 2000 10:40AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2507B
NTSB Number NYC91LA208
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-38-112
Aircraft Series Identifier PA-38-112
Aircraft Serial Number 38-7970096
Certified Max Gross Weight 1670
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Jan 2 2000 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BEAVER AVIATION SERVICE INC.
Aircraft Owner Street Address AIRPORT RD
Aircraft Owner City BUTLER
Aircraft Owner State PA
Aircraft Owner Country
Aircraft Owner Zipcode 16001
Operator is an individual? --
Operator Name BEAVER AVIATION SERVICE INC.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address AIRPORT RD
Operator City BUTLER
Operator State PA
Operator Country
Operator Zip code 16001
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1400
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 8
Runway Length 4000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --